Messing around with the kernel generally does run the risk of voiding warranties and bricking devices.
And most of the things I'd want to do with an iOS device that I'm prevented from doing wouldn't involve any kernel-level work anyway.
But more importantly that's the most pathetic justification I've ever heard. By that logic, since playing the piano is difficult we might as well sell pianos with all the keys glued together.
The truth of it is that Apple products are not designed for tinkering and they actively resist attempts to do it. To spend my time plumbing their internals to add value to a product that treats me an my kind as a sort of infection would be a pure waste. I'll do my hacking on Linux and use my iPhone for arguing with people on hackernews, it's fine.
nut up. hacking has never been perfectly safe and has never had a promise of easy. if you want it enough, you can make it happen.
There are plenty of kids out there tinkering and hacking in the truest sense on iOS and macOS using one of their relative's dev accounts.
This "you can build and directly deploy an app to a limited number of devices if you're on the developer program and have a mac, therefore you can 'hack iOS all you want'" meme is borderline dishonest.